<template>
  <div :class="className" :style="{ height: height, width: width }" />
</template>

<script>
import * as echarts from 'echarts'
require('echarts/theme/macarons') // echarts theme
import resize from '../../dashboard/mixins/resize'

export default {
  mixins: [resize],
  props: {
    className: {
      type: String,
      default: 'chart'
    },
    width: {
      type: String,
      default: '100%'
    },
    height: {
      type: String,
      default: '680px'
    },
    autoResize: {
      type: Boolean,
      default: true
    },
    chartData: {
      type: Object,
      required: true
    }
  },
  data() {
    return {
      chart: null
    }
  },
  watch: {
    chartData: {
      deep: true,
      handler(val) {
        this.setOptions(val)
      }
    }
  },
  mounted() {
    this.$nextTick(() => {
      this.initChart()
    })
  },
  beforeDestroy() {
    if (!this.chart) {
      return
    }
    this.chart.dispose()
    this.chart = null
  },
  methods: {
    initChart() {
      this.chart = echarts.init(this.$el, 'macarons')
      console.log(this.chartData)
      this.chart.on('click', (e) => {
        console.log(e,'click');
        this.$emit('childMessage', e.data.id); 
      })
      this.setOptions(this.chartData)
    },
    setOptions({ nodeData, linksData } = {}) {
      var option = {
        animationEasingUpdate: 'quinticInOut',
        label: {
          normal: {
            show: true,
            textStyle: {
              fontSize: 12
            },
          }
        },
        series: [{
          type: 'graph',
          layout: 'force',
          symbolSize: 80,
          focusNodeAdjacency: true,
          roam: true,
          draggable: false,
          force: {
              repulsion: 2000,
              layoutAnimation:false
          },
          label: {
              normal: {
                  show: true,
                  textStyle: {
                      fontSize: 12
                  },
              }
          },
          lineStyle: {
              normal: {
                  opacity: 0.9,
                  width: 1,
              },
              emphasis:{
                  color: '#ec407a'
              }
          },
          data: nodeData,
          links: linksData
        }]
      };
      this.chart.setOption(option)
    }
  }
}
</script>
